Today marks the 40th Earth Day, the annual event meant to raise awareness of our fragile ecosystem and the need to treat it with greater care. Much has changed since 1970, when Camas native Denis Hayes helped organize the first Earth Day, replete with teach-ins and marches. There were plenty of reasons for outreach and outrage, and some 20 million people participated.
In those days, before catalytic converters became standard on most autos, Vancouver-Portland faced a huge problem with air pollution. In the summer of 1974, there were 37 days of unhealthy smog levels in the metro area, according to the Southwest Washington Regional Transportation Council. After passage of the first Clean Air Act, Portland was one of a few U.S. cities forced to limit downtown parking to fight smog. Today, Vancouver-Portland’s air meets all federal air quality health standards, and monitoring is in place to ensure our continued health.
Water pollution was a major issue back then. DDT, an efficient pesticide that was later shown to affect reproduction of birds, was still in use, as were PCBs, polychlorinated biophenyls used in electrical and industrial applications that were later shown to cause cancer. Both easily found their way into the Columbia River and other surface water. Today, our river is much cleaner, though the toxic legacy of both substances remain. Bird populations have rebounded, and the bald eagle is once again a common sight in Southwest Washington.
In 1970, consumers didn’t understand the problems created by trash. In Western Washington, poorly designed landfills filled rapidly with household garbage, hazardous waste and a large volume of materials — aluminum, glass, paper — that had value as recyclables. Rainwater fell on these landfills, creating a toxic brew that leached into groundwater. Today, landfills are much better designed, and located in drier climates east of the mountains where groundwater contamination is less of a threat. In Clark County, almost 40 percent of our post-consumer waste is recycled at the curb. There are even places to recycle electronic goods such as computers, a product still many years away from the mass market in 1970.